The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 03, 1980
Filed:
Jun. 23, 1978
Friedrich-Wilheim Moller, Friedrichsdorf, DE;
Wolf D Muller, Frankfurt am Main, DE;
Heinz Jockel, Buttelborn, DE;
Metallgesellschaft, Frankfurt am Main, DE;
Abstract
An improvement in the production of a natural gas substitute comprising at least about 80% of methane by volume by multi-stage methanation of a synthesis gas containing hydrogen and oxides of carbon over fixed-bed nickel-containing catalysts under a pressure of about 5 to 100 bars. The starting synthesis gas, preferably produced by oxygen and water gasification of coal, has about 8 to 25% by volume of methane on a dry basis. It is methanated in a first stage at an inlet temperature of about 230.degree.-400.degree. C. and an outlet temperature of about 550.degree. to 750.degree. C. and then in a second stage at about 230.degree. to 500.degree. C. The process is economical with respect to heat consumption and equipment cost.